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Where to fish

  • Forecast
  • Catches

Mine

  • Favorites
Forecast
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© 2026·AI-powered bite forecast
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United States / Michigan / East Arm Grand Traverse Bay

Bite forecast: East Arm Grand Traverse Bay

  • 60.8 sq mi
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Best fishing days for the next week

  1. TuesdaySeptember 8weather-based forecast
    79/100high activity

    Cloudy: 50–57 °F

  2. SundaySeptember 6weather-based forecast
    73/100high activity

    Drizzle: 59–70 °F

  3. ThursdaySeptember 3weather-based forecast
    67/100high activity

    Cloudy: 61–77 °F

Nearby towns

  • Traverse City2 mi

East Arm Grand Traverse Bay (Michigan) — a popular fishing spot. About 157.6 km² in area. Nearest town — Traverse City. This is a sea water — its bite forecast is a marine one, computed apart from rivers and lakes. This page shows an hourly bite forecast for today and the week ahead; the algorithm factors in the weather, atmospheric pressure, and the moon phase.

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Bite calendar

7–Sep 13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Bite activity:highmediumlowslow
Based on:weatherseasonal
What is a bite calendar?
Coho salmonSteelheadChinook salmon

Coho salmon

10/10 · Good

Hourly activity

0:006:0012:0018:0023:00
Bite activity:highmediumlow

The bite is strong — fish are active. Pressure is rising — activity tends to be more subdued.

Peak bite hours

Best time — 06:00–08:00 (dawn bite) and 18:00–21:00 (dusk bite).

Tactics

Look for structure — reefs, flats, channel edges; work them slowly near the bottom.

Lures

The water's turning murky — go with bright, noisy lures: trolling spoon or spinner.

Gear

Pack transitional-season clothing — mornings and evenings are chilly. Rain is expected — don't forget a rain jacket or a waterproof shell.

Summary

Worth going — it's a productive day.

How this forecast is calculated

Why this forecast

The computed water temperature is around 60 °F — warmer than the 43–59 °F comfort range for Coho salmon: in the heat it drops deeper and feeds less often.

Computed water temperature by month; the green band is the 43–59 °F comfort rangecomfort 43–59 °F60 °F
JFMAMJJASOND

Coho salmon works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.

The day: daylight hours and when Coho salmon feeds0:0012:0024:00

Pressure is dropping 0.09 inHg over the day — fish are usually more active ahead of a weather change.

Pressure through the day, 0.09 inHg change
00:00 · 30.1823:00 · 30.08 inHg

One more input — the moon's feeding windows: within their hours the score sits higher than across the rest of the day. The window times are in the “Solunar feeding periods” card below.

Feeding windows on the day scale0:0012:0024:00

September is peak season for Coho salmon here.

JFMAMJJASOND

These are the same values the bite curve above was computed from. How the forecast works

Water

Wave
0.3 ft
Period
2 s

Open-Meteo Marine model, grid cell 15.7 mi from the waterbody. Values are daily means.

8 SepTuesday, September 8
+54°

Cloudy · feels like +51°

Low / high
+50°…+57°
Precipitation
0.00 in
Wind
7 mph E
Cloud cover
100%
Humidity
77%
Pressure
30.22 inHg
00:00+51°—9 mphnortheast wind, 9 mph96%100%
01:00+51°—9 mphnortheast wind, 9 mph96%100%
02:00+50°—9 mphnortheast wind, 9 mph95%100%
03:00+50°—10 mphnortheast wind, 10 mph93%100%
04:00+50°—9 mphnortheast wind, 9 mph91%100%
05:00+50°—9 mphnortheast wind, 9 mph89%100%
06:00+50°—8 mphnortheast wind, 8 mph86%100%
07:00+50°—8 mphnortheast wind, 8 mph84%100%
08:00+50°—8 mphnortheast wind, 8 mph83%100%
09:00+51°—8 mphnortheast wind, 8 mph82%100%
10:00+52°—8 mphnortheast wind, 8 mph81%100%
11:00+53°—8 mpheast wind, 8 mph79%100%
12:00+54°—7 mpheast wind, 7 mph77%100%
13:00+56°—7 mpheast wind, 7 mph75%100%
14:00+56°—7 mpheast wind, 7 mph74%100%
15:00+57°—7 mpheast wind, 7 mph75%100%
16:00+57°—8 mpheast wind, 8 mph76%100%
17:00+56°—7 mpheast wind, 7 mph79%100%
18:00+55°—7 mpheast wind, 7 mph84%100%
19:00+55°—7 mpheast wind, 7 mph87%100%
20:00+55°—6 mpheast wind, 6 mph88%100%
21:00+55°—6 mpheast wind, 6 mph88%100%
22:00+55°—6 mpheast wind, 6 mph89%100%
23:00+55°0.00 in6 mpheast wind, 6 mph91%100%
+57°+53°+50°
Weather throughout the day
0:006:0012:0018:0023:00

Sun and moon

Tuesday, September 8
The day: daylight and the hours the moon is above the horizon. Local time0:0012:0024:00
DaylightMoon above the horizon
Sunrise
06:23
Sunset
19:18
Day length
12 h 55 min
Sunshine hours
4 h 17 min
UV index
2
low
Moon
Waning crescent
Moonrise
03:54
Moonset
18:58

The day is 3 min shorter than yesterday.

Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.

Solunar feeding periods

+11% in the windowTuesday, September 8
Feeding windows on the day scale, local time0:0012:0024:00
Major periodsMinor periods
  • Minor03:24–04:24Moonrise
  • Major10:34–12:34Moon overhead
  • Minor18:28–19:28Moonset

The windows are set by the moon's transit and rise, and the forecast above already accounts for them: within these hours the bite score sits higher than across the rest of the day, while the day's overall level still comes from the catch-calibrated model.

What are solunar periods?

Catches

Recorded 1 catch here. Most commonly caught: Smallmouth bass. Peak season: August.

  • Smallmouth bass
    Michigan
    73 °F4 mph
    Aug 15, 2018, 8:15 PM

Nearby rivers

  • Acme Creek6 mi
  • Torch River8 mi

Nearby water bodies

  • LakePetobego Pond2 mi
  • LakePyatt Lake3 mi
  • LakeBass Lake5 mi
  • BayWest Arm Grand Traverse Bay5 mi
  • LakeElk Lake5 mi
  • BayGrand Traverse Bay6 mi
  • LakePrescott Lake7 mi
  • LakeBirch Lake7 mi
  • LakeBagley Lake7 mi
  • ReservoirBissell Pond8 mi